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Old 31st-January-2012, 06:17 PM   #1
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Ls376/525

Anyone have any experience with this engine in stock form? How streetable is it? The dyno chart is pretty impressive and it looks like it will work perfectly for what I want to achieve.

I'm also thinking for a grand less it might be better to go with the 480 hp model.

John
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Old 31st-January-2012, 08:40 PM   #2
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you talking about these two bro??

LS376/480 HP
http://www.crateenginedepot.com/stor...9-P2218C2.aspx

LS376/525HP
http://www.crateenginedepot.com/stor...3-P9949C2.aspx
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Old 31st-January-2012, 09:44 PM   #3
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Below five grand (RPM) there's not much difference besides the one grand out of pocket. If they were from any other supplier I would be skeptical but I don't think you can go wrong either way.
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Old 31st-January-2012, 11:16 PM   #4
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Man that is some impressive stuff. Zora would be proud!

1.4 HP per cubic inch and comes with a 50,000 mile warranty. That's insane! Man I wish I had some money to burn...
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Old 1st-February-2012, 01:39 AM   #5
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Quote:
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Below five grand there's not much difference besides the one grand out of pocket. If they were from any other supplier I would be skeptical but I don't think you can go wrong either way.
Yup! I'm thinkin' the 480 will work out on the open course and when I'm killin' cones! I can spend the grand that I save on a trick drive system like the one from Eddy Motorsport.



John
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Old 1st-February-2012, 01:46 AM   #6
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ether one will be a hell of a blast!! but true you gotta save where ya can and use it else where
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Old 1st-February-2012, 09:25 AM   #7
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Yup! I'm thinkin' the 480 will work out on the open course and when I'm killin' cones! I can spend the grand that I save on a trick drive system like the one from Eddy Motorsport.



John
I think $1000 will be going to tires too!
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Old 1st-February-2012, 09:25 AM   #8
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Here is my first start-up of LS376/515 that we did during the thanksgiving weekend. It's a healthy motor

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Old 1st-February-2012, 09:42 AM   #9
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Very Nice!!!!

I was a little sad when I sold my LS7 but this is exactly what I was waiting for!

How is she running so far? I noticed you have the circle track version. Is it any different than the 480 or 525 as far as power band?

John
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Old 1st-February-2012, 12:38 PM   #10
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It is my understanding that the 515 and the 525 use the same ASA cam. The 480 has a different cam I believe. I am using a 1050 cfm holley three barrel carb with modified boosters to provide the correct carb signaling. You can see the modified venturi boosters in the below photo. The original ones are to large to give the carb correct velocity/signalling.

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Old 1st-February-2012, 12:49 PM   #11
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LS376/515 TECH SPECS:
Part Number: 19244552
Engine Type: LS Series Gen IV small-block V8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.06 x 3.62 (103.25 x 92mm)
Block (P/N 12584727): Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12617570): Powdered metal
Pistons (P/N 19165089): Hypereutectic aluminum
Camshaft Type (P/N 12480110): Hydraulic roller
Valve Lift (in): .525" intake / .525" exhaust
Camshaft Duration (@.050 in): 226 intake / 236 exhaust
Cylinder Heads (P/N 12598594): LS3 rectangle port, as cast with 68cc chambers
Valve Size (in): 2.16 int / 1.59 exhaust
Compression Ratio: 10.7:1
Rocker Arms (P/N 12569167 int): Investment cast, roller trunnion
Rocker Arms (P/N 10214664 exh): Investment cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: 92 octane
Maximum Recommended rpm: 6600
Reluctor Wheel: 58X
Balanced: Internal


LS376/525 TECH SPECS:
Part Number: 19259233
Engine Type: LS-Series G en I V Small-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
Block (P/N12623967): Cast aluminum with 6-bolt,
cross-bolted main caps
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12607475): Powdered metal
Pistons (P/N 19207287): Hypereutectic aluminum
Camshaft Type (P/N 88958770): Hydraulic roller
Valve Lift (in): 0.525" intake / 0.525" exhaust
Camshaft Duration (@0.050 in): 226 intake / 236 exhaust
Cylinder Heads (P/N 12629063): Aluminum L92-style port; as cast
with 68cc chambers
Valve Size (in): 2.165 intake / 1.590 exhaust
Compression ratio: 10.7:1
Rocker Arms (P/N 12569167 int): Investment cast, roll trunnion
Rocker Arms (P/N 10214664 exh): Investment cast, roll trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: 92 octane
Maximum Recommended RPM: 6,600
Reluctor Wheel: 58X
Balanced: Internal


LS376/480 TECH SPECS
Part Number: 19213229
Engine Type: LS Series Gen IV Small-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.06 x 3.62 (103.25 x 92mm)
Block (P/N 12584727): Cast-aluminum with 6-bolt,
cross-bolted main caps
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12617570): Powdered metal
Pistons (P/N 19168089): Hypereutectic aluminum
Camshaft Type (P/N 88958733): Hydraulic roller
Valve Lift (in): .525" intake / .525" exhaust
Camshaft Duration (@.050 in): 219 intake / 228 exhaust
Cylinder Heads (P/N 12615879): Aluminum L92 style port;
as cast with 68cc chambers
Valve Size (in): 2.165 int / 1.59 exhaust
Compression Ratio: 10.7:1
Rocker Arms (P/N 12569167 int): Investment-cast, roller trunnion
Rocker Arms (P/N 10214664 exh): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: 92 octane
Maximum Recommended rpm: 6600
Reluctor Wheel: 58X
Balanced: Internal
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Old 2nd-February-2012, 12:00 AM   #12
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$7500 is a lot to pay for no accessories or harness/ecu. Find a 6.0L with accessories and harness for $2,500, put some L92 heads ($600) and LS3 intake ($250) on it, and toss in a decent cam ($500), and you'll hit 500 hp easy. Hell, you can find an LY6 (6.0 VVT motor w/ L92s) for pretty cheap, and then you just need a cam and intake. Here's an example -- LY6, LS3 intake/injectors, Vengeance Stage II LS3 cam (227/239 .614/.624 115+3), stock lifters, valves, rocker arms. He put down 400 lb-ft and 414 hp through a 4L80e (an absolute power hog). That's a conservative 500 hp and 480 lb-ft at the crank.
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Old 2nd-February-2012, 12:38 AM   #13
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6.2 litre

I have the LQ9 6.2 in my 2010 silverado 1500 ltz 400 horse version I cannot
fathom what these engines will do in a early nova I have to keep the traction
control on all the time or I will get into trouble I have the 6 speed automatic
also. these engines are so smooth!! 3:42 rear gear ratio you can really suprise
people out of the hole!! revs quick and pull really hard and this in a pickup.
I have 63 nova with l-79 327 motor wicked built scary fast!! I cannot imagine
that 6.2 litre under the hood hope you have really good seatbelts and big budget
for rear tires!!
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Old 2nd-February-2012, 09:28 AM   #14
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Yep, My 66 should rock with the LS376/515 hp engine. Look at that torque curve.

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Old 2nd-February-2012, 11:21 PM   #15
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Quote:
Originally Posted by hookemdevils22 View Post
$7500 is a lot to pay for no accessories or harness/ecu. Find a 6.0L with accessories and harness for $2,500, put some L92 heads ($600) and LS3 intake ($250) on it, and toss in a decent cam ($500), and you'll hit 500 hp easy. Hell, you can find an LY6 (6.0 VVT motor w/ L92s) for pretty cheap, and then you just need a cam and intake. Here's an example -- LY6, LS3 intake/injectors, Vengeance Stage II LS3 cam (227/239 .614/.624 115+3), stock lifters, valves, rocker arms. He put down 400 lb-ft and 414 hp through a 4L80e (an absolute power hog). That's a conservative 500 hp and 480 lb-ft at the crank.
Hmmm...not a bad idea.....I already have a set of L92 heads,LS7 dry sump pan and an intake. All I would need to do is take the timing chain cover off and replace the LS3 oil pump with the LS7 one along with using the dry sump pan rather than the LS one. That and replace the stock heads with the L92's I have. The only thing I would need to buy would be a cam then.....

John
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